Environmental Laboratory

The Development of a Transportable Humidity and Temperature Generator

May 19 2006

Author: Blue Ramsey & Robin Farley on behalf of Rotronic

Free to read

This article has been unlocked and is ready to read.


This paper describes the development and testing of a transportable humidity and temperature generator primarily used for the calibration of humidity instrumentation in laboratories and on-site. The unit is capable of generating humidity and temperature environments over the ranges 0…60°C and 2…95%rh, and is fully selfcontained, requiring only an electrical supply. The design of both the temperature and humidity control systems are discussed, including how many of the inherent difficulties in achieving stable control in a small chamber have been overcome. Test methods and data are presented to show how the key performance issues of temperature control stability and temperature gradients can both be specified to be better than 0.1°C. Included is a presentation of an uncertainty budget, with worked examples based on probe and chilled mirror transfer standards.

Free to read

This article has been unlocked and is ready to read.


Digital Edition

IET 34.2 March 2024

April 2024

Gas Detection - Biogas batch fermentation system for laboratory use with automatic gas analysis in real time Water/Wastewater - Upcycling sensors for sustainable nature management - Prist...

View all digital editions


Asia Water 2024

Apr 23 2024 Kuala Lumpur, Malaysia

Korea Lab 2024

Apr 23 2024 Kintex, South Korea

Canadian Hydrogen Convention

Apr 23 2024 Edmonton, AB, Canada

Lab Indonesia

Apr 24 2024 Jakarta, Indonesia

IFAT Brasil

Apr 24 2024 Sao Paulo, Brasil

View all events